Key TM2003

The electronic contact key METAKOM TM2003 has a data exchange protocol similar to the Dallas iButton DS1990A key protocol and allows completely replacing the Dallas iButtom TM key. The key for use in access control systems as an alternative to Dallas DS1990A electronic keys. In the key is a special chip, which is a non-volatile memory. The key memory is stored in unique binary code information, which is written into the crystal and can‘t be changed during the whole service life. Each key has an individual non-repeating code. The total number of codepages exceeds 280 million.